ebay aquarium temp controller build - Page 315 - Home Brew Forums
Home Brew Forums > Home Brewing Beer > DIY Projects > Fermenters > ebay aquarium temp controller build

Reply
 
Thread Tools
Old 11-20-2012, 05:42 AM   #3141
EdgeBrew
Recipes 
 
Apr 2012
Victoria, Australia
Posts: 48
Liked 4 Times on 4 Posts


Have ordered one. Should I run seperate contactors for the heating and cooling? For simplicity my mind says no, but my electrical engineering background says yes.

I have currently borrowed the bosses cellar controller and have a st1000 ordered.


Click image for larger version

Name:	image-2337464818.jpg
Views:	468
Size:	39.4 KB
ID:	84753   Click image for larger version

Name:	image-1452586711.jpg
Views:	479
Size:	33.3 KB
ID:	84754  

 
Reply With Quote
Old 11-20-2012, 06:14 AM   #3142
meadmazer
Recipes 
 
Sep 2012
Deweyville, Utah
Posts: 170
Liked 10 Times on 10 Posts


I just ordered an STC1000 also. I am planning so far on a small industrial 200watt heater off of the internal heat contact. I havent read every page in this thread but have read a few that are running a small freezer right off the STC1000. A separate contactor would protect the temp controller though from the starting current of a compressor motor. I would feel better about a separate relay on the cooling side anyway.



 
Reply With Quote
Old 11-20-2012, 01:16 PM   #3143
zachattack
Recipes 
 
Mar 2012
, MA
Posts: 2,764
Liked 297 Times on 250 Posts


I think the internal relays are rated at 10A? Chances are you'll be fine without an external contactor relay. Since this unit is so cheap, to be honest it'll be cheaper to replace the STC-1000 than buy separate contactors or SSRs.

Indeed, I run a 7 cu foot chest freezer off mine.

 
Reply With Quote
Old 11-20-2012, 01:19 PM   #3144
jeepinjeepin
Recipes 
 
Apr 2011
Winston-Salem, NC
Posts: 6,410
Liked 1046 Times on 1025 Posts


I think they are rated at 10A, but if you open it up you will likely find the relays are marked 15A.
__________________
Walmart is about the only reason for open or concealed carry that I can get behind. -Randar

 
Reply With Quote
Old 11-20-2012, 03:19 PM   #3145
raouliii
HBT_SUPPORTER.png
 
raouliii's Avatar
Recipes 
 
Aug 2011
Ponchatoula, LA
Posts: 1,016
Liked 118 Times on 102 Posts


STC-1000 relays

__________________
On Tap:
LeftOvers Amber
Rearranger IPA - Chinook, Simcoe, Cascade
Ponchy Pale Ale - Millennium and Willamette
NippleRub Ultra (Light Lager w/Mexican Lager yeast)

In the Chamber:
Nothing

Next Up:
A Light Lager

 
Reply With Quote
Old 11-20-2012, 03:36 PM   #3146
porcupine73
Recipes 
 
Aug 2012
Fort Meade
Posts: 813
Liked 47 Times on 43 Posts


Also depends how much current the solder traces on the board can handle, and what the rating is on those screw terminals. For a typical refrigerator or chest freezer load I wouldn't worry about it, but if you were going to run a 1500 watt heater off it for some reason I'd probably go with a separate contactor or SSR.

 
Reply With Quote
Old 11-20-2012, 05:43 PM   #3147
Roadliner
HBT_SUPPORTER.png
 
Roadliner's Avatar
Recipes 
 
Sep 2010
Fox Valley, Wisconsin
Posts: 1,546
Liked 273 Times on 184 Posts


This might be a dumb question lol. But i havent seen it in the pages ive looked through yet. If you rig one of these up to a stand-up fridge, will the top freezer portion still be able to function?

 
Reply With Quote
Old 11-20-2012, 05:49 PM   #3148
tre9er
Recipes 
 
Jan 2012
Lincoln, NE
Posts: 4,369
Liked 242 Times on 197 Posts


Quote:
Originally Posted by Roadliner View Post
This might be a dumb question lol. But i havent seen it in the pages ive looked through yet. If you rig one of these up to a stand-up fridge, will the top freezer portion still be able to function?
Yeah, because you're plugging the whole fridge into the outlet installed in the box, just like you would with plugging it into the wall. But, the caveat is that while the freezer will be powered when the fridge is powered, at proper Ale fermentation temps that will mean the freezer will stay ABOVE freezing. It will be slightly cooler than the fridge, perhaps, but unless you're doing a lager, it won't be freezing in the freezer...

so maybe that means, No, it won't "work", at least not as it normally would.

Ie. setting the temp probe to 64 and placing it in the fridge portion would mean the freezer is probably in the 40's. Setting the fridge to 40 means the freezer is below 32.

When I cold crash around 40, my freezer frosts over. When I ferment, though, it's not frosty.
__________________
_________________________________
Skal!
Den Faaborg Bryggeri

Quote:
Originally Posted by davekippen View Post
Open log Fermenting and gas-can secondary?? I am planning my next brew right now!!

 
Reply With Quote
Old 11-20-2012, 05:52 PM   #3149
porcupine73
Recipes 
 
Aug 2012
Fort Meade
Posts: 813
Liked 47 Times on 43 Posts


Right, the freezer section will work, but it's probably not like you want to trust it for keeping meat in there or anything. The temp would not be very predictable if you are controlling the fridge temp to 60F or whatever your setpoint is.

The STC-1000 imho is best used on 'old school' refrigerators that don't have fancy electronic controls or auto defrost.

 
Reply With Quote
Old 11-20-2012, 06:11 PM   #3150
Roadliner
HBT_SUPPORTER.png
 
Roadliner's Avatar
Recipes 
 
Sep 2010
Fox Valley, Wisconsin
Posts: 1,546
Liked 273 Times on 184 Posts


Yeah i was looking at getting an old fridge from craigslist and using the freezer section to store my ingredients when they are awaiting use.



 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
DIY temp controller build android DIY Projects 100 05-09-2013 01:14 PM
Control Fermentation temp with Aquarium Heater chemist308 General Techniques 20 12-15-2012 12:13 AM
question about "aquarium temperature controller" SamBrewer General Techniques 12 02-26-2011 07:30 PM
Attic Fan Temp Controller = Inexpensive Fermentation Controller???? Beernip General Techniques 5 06-16-2009 04:30 PM
Brutus Build Controller Box? gruversm Brew Stands 9 03-27-2009 03:54 AM


Forum Jump